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Note 8 - Goodwill (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011
Goodwill, Impairment Loss (in Dollars) | $ 67,000 | $ 410 | $ 67,000

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | us-gaap_GoodwillImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration